An Earth-sized planet with an Earth-like density

Francesco Pepe (), Andrew Collier Cameron, David W. Latham, Emilio Molinari, Stéphane Udry, Aldo S. Bonomo, Lars A. Buchhave, David Charbonneau, Rosario Cosentino, Courtney D. Dressing, Xavier Dumusque, Pedro Figueira, Aldo F. M. Fiorenzano, Sara Gettel, Avet Harutyunyan, Raphaëlle D. Haywood, Keith Horne, Mercedes Lopez-Morales, Christophe Lovis, Luca Malavolta, Michel Mayor, Giusi Micela, Fatemeh Motalebi, Valerio Nascimbeni, David Phillips, Giampaolo Piotto, Don Pollacco, Didier Queloz, Ken Rice, Dimitar Sasselov, Damien Ségransan, Alessandro Sozzetti, Andrew Szentgyorgyi and Christopher A. Watson
Additional contact information
Francesco Pepe: Observatoire Astronomique de l’Université de Genève, 51 chemin des Maillettes, 1290 Versoix, Switzerland
Andrew Collier Cameron: Scottish Universities Physics Alliance, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife KY16 9SS, UK
David W. Latham: Harvard-Smithsonian Center for Astrophysics, 60 Garden Street
Emilio Molinari: INAF - Fundación Galileo Galilei, Rambla José Ana Fernandez Pérez 7, 38712 Breña Baja, Spain
Stéphane Udry: Observatoire Astronomique de l’Université de Genève, 51 chemin des Maillettes, 1290 Versoix, Switzerland
Aldo S. Bonomo: INAF - Osservatorio Astrofisico di Torino, via Osservatorio 20, 10025 Pino Torinese, Italy
Lars A. Buchhave: Harvard-Smithsonian Center for Astrophysics, 60 Garden Street
David Charbonneau: Harvard-Smithsonian Center for Astrophysics, 60 Garden Street
Rosario Cosentino: INAF - Fundación Galileo Galilei, Rambla José Ana Fernandez Pérez 7, 38712 Breña Baja, Spain
Courtney D. Dressing: Harvard-Smithsonian Center for Astrophysics, 60 Garden Street
Xavier Dumusque: Harvard-Smithsonian Center for Astrophysics, 60 Garden Street
Pedro Figueira: Centro de Astrofísica, Universidade do Porto, Rua das Estrelas, 4150-762 Porto, Portugal
Aldo F. M. Fiorenzano: INAF - Fundación Galileo Galilei, Rambla José Ana Fernandez Pérez 7, 38712 Breña Baja, Spain
Sara Gettel: Harvard-Smithsonian Center for Astrophysics, 60 Garden Street
Avet Harutyunyan: INAF - Fundación Galileo Galilei, Rambla José Ana Fernandez Pérez 7, 38712 Breña Baja, Spain
Raphaëlle D. Haywood: Scottish Universities Physics Alliance, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife KY16 9SS, UK
Keith Horne: Scottish Universities Physics Alliance, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife KY16 9SS, UK
Mercedes Lopez-Morales: Harvard-Smithsonian Center for Astrophysics, 60 Garden Street
Christophe Lovis: Observatoire Astronomique de l’Université de Genève, 51 chemin des Maillettes, 1290 Versoix, Switzerland
Luca Malavolta: Universita’ di Padova, Vicolo dell’Osservatorio 3, 35122 Padova, Italy
Michel Mayor: Observatoire Astronomique de l’Université de Genève, 51 chemin des Maillettes, 1290 Versoix, Switzerland
Giusi Micela: INAF - Osservatorio Astronomico di Palermo, Piazza del Parlamento 1, 90124 Palermo, Italy
Fatemeh Motalebi: Observatoire Astronomique de l’Université de Genève, 51 chemin des Maillettes, 1290 Versoix, Switzerland
Valerio Nascimbeni: INAF - Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, Italy
David Phillips: Harvard-Smithsonian Center for Astrophysics, 60 Garden Street
Giampaolo Piotto: Universita’ di Padova, Vicolo dell’Osservatorio 3, 35122 Padova, Italy
Don Pollacco: University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK
Didier Queloz: Observatoire Astronomique de l’Université de Genève, 51 chemin des Maillettes, 1290 Versoix, Switzerland
Ken Rice: Scottish Universities Physics Alliance, Institute for Astronomy, Royal Observatory, University of Edinburgh, Blackford Hill, Edinburgh EH93HJ, UK
Dimitar Sasselov: Harvard-Smithsonian Center for Astrophysics, 60 Garden Street
Damien Ségransan: Observatoire Astronomique de l’Université de Genève, 51 chemin des Maillettes, 1290 Versoix, Switzerland
Alessandro Sozzetti: INAF - Osservatorio Astrofisico di Torino, via Osservatorio 20, 10025 Pino Torinese, Italy
Andrew Szentgyorgyi: Harvard-Smithsonian Center for Astrophysics, 60 Garden Street
Christopher A. Watson: Astrophysics Research Centre, School of Mathematics and Physics, Queen’s University Belfast, Belfast BT7 1NN, UK

Nature, 2013, vol. 503, issue 7476, 377-380

Abstract: Data from the Kepler spacecraft and the HARPS-N ground-based spectrograph indicate that the extrasolar planet Kepler-78b has a mean density similar to that of Earth and imply that it is composed of rock and iron.

Date: 2013
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DOI: 10.1038/nature12768

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